<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>学习测试</title>
</head>

<body>

    <div id="components-demo">
        <button-counter></button-counter>
    </div>
    <br>
    <div id="components-demo1">
        <button-counter></button-counter>
        <button-counter></button-counter>
        <button-counter></button-counter>
    </div>



</body>



<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
<script src="appp.js"></script>

</html>